Twenty years ago this region produced twice as much coal as it does now.
A.Coal production in this region has been halved in the last twenty years.
B.More coal is produced now in this region than twenty years ago.
C.Coal production in this region has doubled in the last twenty years.
D.This region has produced more coal now than twenty years ago.
A.Coal production in this region has been halved in the last twenty years.
B.More coal is produced now in this region than twenty years ago.
C.Coal production in this region has doubled in the last twenty years.
D.This region has produced more coal now than twenty years ago.
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